Tilting rudder construction



March 22, 1932. Y J. w. HARVEY 1,850,669

"'rlm'me RUDDER cons'mucmon Filed Sept. 4, 1931 .Ijda'. 2. m 2a (a J a Z 2 %2 O 2 :1 J76 b: 24 I I I Li F Patented Mar. 22, 1932 v 7 JAMES wrLLAien rmnvnmorwmrnnor, MAINE summer Roxanna CONSTRUCTION iApplicationifileilSeptember 4, 1931. Serial No.56 1,101.

Myinvention-relates particularly to rudders for boats. I

One object is to provide a simple but rug- M ged constructionflwhich can be readily in-,

i stalled. r I r 'Another object is to provide aconstruction which will be automatically retracted in case the rudder strikes an obstruction. Another object is to provide a construction 16 which can be tilted up out of the way by hand when beaching a boat. j

In its preferred form'the-construction embodies an anchorage plate adapted to be se cured to the transom of a small boat and to 15 which'is hinged a bracketwhich carries the I rudder. This bracket is suitably. held in its normal steering position either by means of a readily breakable pin or wire or by'a latch which can be actuatedby hand or automat ically. I

1 is a side view and section showing the construction embodying one form of my in vention.

. Fig. 2 is a rear viewof the. construction 25 a Fig. 3' isa front view of the'anchorage plate. 7 p

Fig. 4 isa transverse sectional view.

Fig. 5 is a side view of the anchorage plate and bracket of amodified form of construction',the rudder being omitted.

Fig. 6 is a detail of a modified form of device for attaching the steering or tiller ropes.

The plate 7 is adapted to be secured to the transom 8 of the boat by means of screws or rivets 9 and serves'as an anchorage for the entire attachment. The bracket 10 is hinged on the pin 11 which is supported by the knuckles 12 on the back plate 7.

The bracket or outside hinge plate 10 may be formed for instance of cast-metal and provided with bearings 14 at the upper and lower ends for the rudder post 15. Bearing boxes I or cap plates 16 mayserve to hold the rudder post or shaft detachably in place. The rudder 17 may be of any suitable design and size. The upper end of the post is provided with a shoulder 18 which rests onthe upper bearing so as to support the weight of the rudder.

. Any suitable form of tiller arm or arms may Q be provided such as the forked arms 20 which project rearwardly so as to leave an abundance of clearance for the tilting of the rudder shaft or post. o i

I have shown the spring, pressed latch bolt 21' for holding the rubber in its normal-stee ing position. The lower end of this latch-bolt engages a stud 22 which projects rearwardly" through the transom 8 and through the out-' side hinge plate 10. The shank 23- of the latch bolt passes through the upper bearing mem ber 16 behind the rubber shaft and'has a latch release lever 24% hinged at 25 to it. .The spring a 26 presses thelatch bolt normally down'ward into engagement with the stud 22.

The shape of the lower end of the latchbolt of the recess in the stud, 22 is such as to'normally hold the parts in'position but to permit the latch bolt to be automatically disengaged in case the rudder strikes an obstruction in which event the latch bolt yields against the spring 26 and allows its escape from the holding stud 22; o I

The lever 24: is provided with an extension shoulder 27' for engaging the abutment 28 so that by tilting the lever 24: upwardly the extension 27 would engage the abutment 28 and thus lift the hinge pin 25 and the shank 23. of the latch bolt and retract the latch and permit the rudder tobe tilted by hand. The hinge plate may be provided with a guide 30 for the latch bolt 21'.- If desired the spring 26 can be omitted and a frangiblepin 31 inserted through the head'of the latch bolt to hold it in place.

' In case the rudder should strike anobstruction the inclined tip of the latch bolt'21 would force the latch bolt upwardly and shear the pin and allow the rudder to tilt. Other forms of shear pins might be substituted within the V spirit'ofmy'invention.

In Fig. 5 the anchorage plate 7 is designed to be secured to the outside of the transom instead of to the inside This construction is.

simpler to install but does nothave the same tiller rope in place of the arms 20.

I claim:

1. A tilting rudder construction for a boat comprising an inner hinge plate adapted to be secured to the inside of the transom of a boat, an outer hinge plate hinged to the top position, and a rudder pivotally supported by of the inner hinge plate and adaptedto rest against the rear face of the transom, readily detachable means of connection between said hinge plates to hold them in normal running the ,outer hinge plate. 7

2. A tilting rudder construction. for a boat comprising an inner hinge plate adapted to besecured to the inside of the transom of a boat,.an outer hingeplate hinged to the top of the inner hinge plate and adaptedtorest ainst, the rear face of the transom, a rudder pivotally support-ed'by the outer hinge plate, and a stud projecting from one plate through the transom and into the other plate for holds ing the outer plate yieldingly in position.

3. A tiltingrudder construction for aboat comprising an'inner hinge plate adapted to be secured to the inside of the transom of a boat,an outerhinge plate hingedto the top of the, inner hingeplate and adapted to rest against the rear face ofthe transom, a rudder and shaft pivotally supported by the outer hinge plate, upper and lower bearings on the outer platefor holdingthe rudder shaft to the outer hinge -plate,said rudder and shaft being supported yertically by the upper-bearing, and readily detachable means of connectionbetweensaidhinge plates to hold the rudder, in normal running position.

- 4, A tilting rudder construction for aboat comprising a front hinge pla-teadapted to be secured to the transom of a boat, a rear hinge plate hinged to the upper edge of the front hinge plate, one plate having a projecting stud'and the other plate having a recess for said stud, means carried by the two plates to yieldingly hold the rear plate in position, a bearing carried by the rear plate below the axis of the hinge, a rudder post pivotally supported by said bearing, and a rope attaching member detachably mounted on the upper endof the rudder post and supported on said bearing,

5. A tilting rudder construction for a boat comprising a front hinge plate adapted to be secured to the transom of a boat, a rear hinge plate hinged to the upper edge of the front inge plate, said rear plate being provided witha recess and the front plate havinga stud adapted to project into said recess, means carried'by the rear plate and coacting with said stud to hold the rear plate yieldingly in position, an upper bearing carried by said rear plate below theaxisof the hinge, alower bearing carried by said rear plate below said stud, and a rudder post pivotally supported insaid bearings.

6. A tilting rudder construction for a boat comprising a front hinge plate adapted to be secured to the transom of a boat, a rear hinge plate hinged to the upper edge ofthe front hinge plate, one plate having a stud projecting toward the other plate, means carried by the other plate and coacting with said stud to hold the rear plate yieldingly in position, an upper bearing carried by said rear plate below the axis of the hinge, a lower bearin carried by said rear plate below said stud, an a rudder pivotally supported in said bearings and havingitsweight supported byrthe upper bearing. p

7. A tilting rudder construction comprising a fronthinge plate adapted tolbeseeuredto the transom of a boat, a rear hingeiplato, hinged to theupper edge of the front hinge plate, the front hinge plate-having a stud pmecting at least part way, into, the rear hingo;

plate, a shear pin extending through said stud in, front of a ,part'of the rear hinge plate, upper and lower bearingscarried bythe rear. plate, a rudder having a postpi-votally supported by the bearings in the rear, hin e plate, and a rope attaching member detachaily: con-s nectedto theupperend of said postand supportedbyythe upper bearing. A

8. A tilting rudder. construction. comprising a fronthingeplate adaptedltofbesecliredf to the transom of a boat, ,a rear" hinge plate hinged to the upper edge of the front hinge: plate, one hinge plate having a,stud;projecting at leastflpart way through the other plate, a shear pin extending through s'aidstnd and apart ofthe other hingeplate, an up r bearing carried by the, rear plate belowv tl ie axis of the hinge andabove said stud, andat rudder having, aipost pivotally, andrremova bly supportedflby saidbearingon. the rear.

hinge plate,

JAMES; WILLARD 

